OO
B
CenSto
WO
U
EutMac
On Corylus americana in tallgrass prairie.
On Silphium perfoliatum at edge of oak savanna.
ID Verified by WI Bumble Bee Brigade Survey:
Record: https://wiatri.net/inventory/bbb/submitdata/secure/obsSummary.cfm?obsID=18810
I thought this was B. vagans queen but now I am unsure. very large in size, larger than impatiens queen, but doesn’t match thorax pattern of auricomus. Could this be rusty patch queen…. Help me identify?